Preparation method of renewable epoxy asphalt material and regeneration process thereof

A preparation method of a renewable epoxy asphalt material, wherein the preparation method comprises the following steps:

• I. reacting vanillin and 4-aminophenol in water via stirring in a molar ratio of 1:1 to 1:3, and filtering to collect the solid phase powder, which is washed and dried to obtain VAN-AP;
• II. mixing the VAN-AP with epichlorohydrin in a molar ratio of 1:25 to 1:30, to which tetrabutylammonium bromide is added as a phase transfer catalyst to obtain a mixed reactant, which is heated at 80° C. to 90° C. for 2 hours to 3 hours;
• adding sodium hydroxide solution dropwise, and reacting for 1.5 to 2 hours;
• mixing the mixture with ethyl acetate, filtering, drying, and concentrating to obtain GE-VAN-AP;
• and
• III. mixing preheated asphalt with a polyetheramine curing agent and a polyetheramine accelerator to form component A;
• the GE-VAN-AP is melted at 110° C. to 120° C. as component B;
• the component A is mixed with the component B in a molar ratio of —NH2 in the polyetheramine to the GE-VAN-AP of 1:1, and evenly stirred to obtain a renewable epoxy asphalt material.